A Neogaf user has done an incredible amount of research to discover a treasure trove of unused, cut and secret content from the Metroid Prime series. Story boards, unused suit powers for Samus, secret enemies, entire cut levels, cut scenes and plot elements—it's all here.

Naturally, there's a ton of content cut from any game during its lengthy development. But it's rare for anyone else to see that content outside of bonus vignettes and other rare exceptions. For one person to have unearthed this much content is highly unusual, and perhaps speaks to the true depth of the Metroid Prime series—as well as the dedication of its fans.

Head to the original thread on Neogaf to check out all the findings from each game, plus a ton of speculation. Or head to the thread on reddit that pointed out this amazing find.